hardware-conference, more conferences when less participants ?

[gmahr]

Hi,

I do know that PVDM2-16 (1 DSP) supports 2 conference-sessions at G.729a , i.e. 2 conferences with 8 participants.

Is the same DSP also able to support 4 conferences with 4 participants ?

Thanks

[gogasca]

No exactly 4, but 8 conferences with 8 participants each one,if using only G711, check this link:

Basically it will depend on codec complexity and MIPS-

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/callc_c/ccm_c/intcnf2.htm#wp1068869

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_implementation_design_guide_chapter09186a0080637427.html#wp1044922

[Rob Huffman]

Hi Gerhard,

Unfortunately this is not supported. With the PVDM2-16 using g729a there is only support for 2 sessions (conferences) Have a look;

Conferencing needs dedicated DSP resources. A DSP will support eight conference calls on a G.711 codec, or two conference calls on a G.729/G.711 configuration. (The PVDM2-16 will support eight conference calls on G.711 or 2 conference calls on G.729/G.711.) There is a maximium of eight participants per conference.

From this doc;

http://www.cisco.com/en/US/products/hw/routers/ps221/prod_configuration_guide09186a0080106d1c.html#wp70832

A conference based on these DSPs allows a maximum of 8 participants. When a conference begins, all 8 positions are reserved at that time.If you configure all conferencing for both G.711 and G.729 codecs, then each DSP provides only 2 conferences of 8 participants each.

From this doc;

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_implementation_design_guide_chapter09186a00806e8c25.html#wp1087989

Number of Conferences Per DSP (PVDM2-16) G.729a - 2 conferences X 8 conferees

From this doc;

http://www.cisco.com/en/US/products/hw/modules/ps3115/products_data_sheet0900aecd8016e845.html

Hope this helps!

Rob